IBM 6151 Maintenance And Service Manual page 281

Application Only Problems PIC 0080
Use this PIC to find problems that fail only when an application
program is running and the diagnostic programs run without a
failure.
Step 1
The AIXTM Operating System provides an error logging function.
IS THE CUSTOMER USING THE "AIX OPERATING
SYSTEM"?
NO Go to "Step 8" on page 3-0080-8.
YES Continue on the next page.
AIX is a trademark of International Business Machines Corporation.
(6/88) Problem Isolation Charts 3-0080-1